A chain corrosion testing device with complex environment simulation function

Abstract

This invention discloses a chain corrosion testing device with complex environment simulation function, belonging to the technical field of corrosion testing devices. The testing device includes an environment simulation mechanism, a clamping mechanism, a detection mechanism, and a temperature control mechanism. The clamping mechanism and the environment simulation mechanism are tightly connected, the detection mechanism and the environment simulation mechanism are tightly connected, and the temperature control mechanism and the environment simulation mechanism are tightly connected. The environment simulation mechanism provides a unified support platform and a closed spatial environment for each mechanism. The clamping mechanism realizes the adaptation clamping and stretching and rolling actions of the workpiece through multi-dimensional clamps to simulate the applicable environment. The detection mechanism provides feedback and realizes status monitoring. The temperature control mechanism regulates the ambient temperature through the circulation of hot and cold media, thereby realizing the combined effect of multiple factors such as temperature, humidity, corrosivity, and stress in the test environment.

Description

Technical Field

[0001] This invention relates to the field of corrosion testing equipment technology, specifically a chain corrosion testing device with complex environment simulation function. Background Technology

[0002] Chain links are widely used in ship anchoring, port lifting, mining transportation, and construction machinery. Their service environment often involves combined stresses such as high humidity, salt spray, silt erosion, and mechanical loads. With the development of marine engineering and heavy-duty transportation, the service conditions of chain links have become more stringent, and corrosion failure has become an increasingly prominent problem.

[0003] Existing technologies, such as CN117147423A, still rely heavily on single salt spray tests or static immersion tests for traditional chain link corrosion tests. This makes it difficult to accurately reproduce the environment of multiple factors coupled together during service, such as temperature, humidity, salt spray, sand and water erosion, and tensile load. Therefore, there is an urgent need for a chain link corrosion test device that can simultaneously apply multiple corrosion and mechanical stress conditions in order to more accurately evaluate the corrosion resistance and service life of the chain links.

[0004] Existing technologies generally lack the capability to test various stress conditions such as salt spray corrosion, high-pressure impact flow, water-sand coupled erosion, and mechanical tension. They typically require batch testing in different equipment, resulting in long testing cycles and poor data correlation. Clamping mechanisms are mostly fixed or unidirectionally adjustable, making it difficult to quickly adapt to workpieces of different shapes and sizes, and lacking dynamic loading capabilities such as tension and drop. In sand or water erosion simulations, the media delivery method is singular, making it difficult to stably control particle flow rate and impact rhythm, and lacking efficient media separation and recovery systems. Temperature control systems are mostly unidirectional, with small heat exchange areas, slow temperature change response, high energy consumption, and low media recycling rates. Therefore, those skilled in the art provide a chain-link corrosion testing device with complex environment simulation capabilities to address the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide a chain corrosion testing device with complex environment simulation function to solve the problems raised in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The test apparatus includes an environmental simulation mechanism, a clamping mechanism, a detection mechanism, and a temperature control mechanism. The clamping mechanism and the environmental simulation mechanism are fastened together, the detection mechanism and the environmental simulation mechanism are fastened together, and the temperature control mechanism and the environmental simulation mechanism are fastened together.

[0008] By adopting the above technical solution, the environmental simulation mechanism provides a unified support platform and a closed spatial environment for all mechanisms. The clamping mechanism uses multi-dimensional fixtures to adapt and clamp the workpiece, and the stretching and rolling actions simulate the applicable environment. The detection mechanism provides feedback and monitors the status, and the temperature control mechanism regulates the ambient temperature through the circulation of hot and cold media. This achieves the combined effect of multiple factors such as temperature, humidity, corrosiveness, and stress in the test environment.

[0009] Furthermore, the environmental simulation mechanism includes a test chamber, a supply component, and an environmental simulation component. The clamping mechanism, the detection mechanism, and the temperature control mechanism are all securely connected to the test chamber. The supply component is securely connected to the test chamber, and the environmental simulation component is securely connected to the test chamber. The environmental simulation component is located at the bottom of the test chamber.

[0010] By adopting the above technical solution, the test chamber, as a sealed core space, is used to hold the test medium and the workpiece under test. The supply component quantitatively delivers liquid, aerosol, or particulate media into the test chamber from the top, while the environmental simulation component generates or processes the simulated medium at the bottom of the test chamber, achieving continuous change and recycling of environmental conditions. The test chamber provides sealing and structural support to ensure a controllable internal environment; the supply component precisely introduces the required medium into the test area by controlling the spraying, dripping, or conveying methods; the environmental simulation component completes the generation, separation, or recycling of the medium at the bottom and interacts with the gas-liquid flow inside the test chamber to achieve comprehensive simulation of environmental factors such as temperature, humidity, corrosivity, and erosion. The layered arrangement of the test chamber, supply component, and environmental simulation component allows for more diverse environmental conditions and a high recycling rate of the test medium.

[0011] Furthermore, the supply components include a dripping nozzle, a salt spray generator, a high-pressure pump, a nozzle, and a pulse valve. The dripping nozzle is hinged to the test chamber, the salt spray generator is connected to the dripping nozzle, the dripping nozzle and the salt spray generator are located above the test chamber, the high-pressure pump is connected to the pulse valve, the pulse valve is connected to the nozzle, and the high-pressure pump, nozzle, and pulse valve are located below the test chamber.

[0012] By adopting the above technical solution, the supply component consists of a dripping nozzle, a salt spray generator, a high-pressure pump, a nozzle, and a pulse valve. The dripping nozzle is hinged and installed above the test chamber with an adjustable angle. The salt spray generator is connected to the dripping nozzle and can be used to atomize the salt solution and deliver it evenly to the test area through the nozzle. The dripping nozzle and the salt spray generator are arranged together above the test chamber to facilitate the simulation of natural environments such as rainfall and salt spray. The high-pressure pump is located below the test chamber and is connected to the pulse valve, which in turn is connected to the nozzle. Through the pressure provided by the high-pressure pump and the periodic control of the pulse valve, the intermittent jetting of high-energy fluid in the nozzle is achieved. At the start of the test, the salt spray generator is activated, atomizing the salt solution and sending it into the test chamber through the dripping nozzle to form a uniform salt spray environment. At the same time, the dripping nozzle can drip liquid medium according to the test requirements. The high-pressure pump is activated under the command of the control system, pushing the liquid to be released periodically through the pulse valve and sprayed onto the surrounding area through the nozzle to simulate wave impact, sand and water erosion, and other working conditions. The upper drip-propellant nozzle works in conjunction with the salt spray generator to achieve corrosive atomization and droplet simulation, while the lower high-pressure pump, pulse valve, and nozzle cooperate to form a controllable impact flow field. Multi-factor environmental simulation is achieved through the superposition of the upper and lower media. The effect of this scheme is that it can simultaneously or alternately achieve various environmental stress loadings such as salt spray corrosion, droplet erosion, and high-pressure scouring within the same test space, improving the comprehensiveness and realism of the test conditions. At the same time, the reasonable distribution of components and stable media supply ensure the reliability and repeatability of the test results.

[0013] Furthermore, the environmental simulation component includes a simulation box, a simulation screw rod, a sand inlet pipe, a sand filter plate, a sand discharge motor, a sand discharge valve pipe, a first elastic element, a first electromagnetic block, and a first magnetic block. The simulation box and the test chamber are rigidly connected; the simulation screw rod and the sand filter plate are rotatably connected; the simulation screw rod and the test chamber are rotatably connected; the sand discharge motor and the test chamber are rigidly connected; the sand discharge motor and the first electromagnetic block are driven by transmission; the first electromagnetic block and the first magnetic block are driven by magnetic pole repulsion; the first magnetic block and the test chamber are slidably connected; the first elastic element and the first electromagnetic block are rigidly connected; the first elastic element and the first magnetic block are rigidly connected; and the first magnetic block... The block and the simulated spiral rod are fastened together. The simulated spiral rod and the first electromagnetic block are slidably connected. The first electromagnetic block is provided with a sliding groove. The simulated spiral rod is provided with a sliding protrusion. The sliding protrusion and the sliding groove are slidably connected. The sand discharge valve pipe is connected to the simulation box. The sand filter plate and the simulation box are fastened together. A seawater simulation chamber is provided above the simulation box and the sand filter plate. A liquid recovery chamber is provided below the simulation box and the sand filter plate. The sand filter plate is provided with an inclined surface and a sand discharge arc surface. The sand discharge arc surface is semi-circular. The inclined surface is used to allow the simulated medium to flow into the sand discharge arc surface. The sand discharge arc surface is used to simulate the spiral rod to transport sand on it.

[0014] By employing the aforementioned technology, the simulation chamber and the test chamber are tightly connected to form an independent simulated environment cavity; the simulated spiral rod is rotatably connected to the sand filter plate and the test chamber respectively, and is tightly fitted with the first magnetic block to realize sand conveying and agitation; the sand inlet pipe is used to introduce sand into the simulation chamber, the sand filter plate is tightly connected to the simulation chamber, dividing the cavity into an upper seawater simulation cavity and a lower liquid recovery cavity; the sand discharge motor is tightly fixed to the test chamber, and drives the first electromagnetic block to move through transmission. The magnetic poles of the first electromagnetic block and the first magnetic block repel each other and slide together. The first elastic element is simultaneously tightly connected to the first electromagnetic block and the first magnetic block to realize force buffering and reset; the simulated spiral rod is slidably connected to the first electromagnetic block, and its sliding protrusion cooperates with the sliding groove on the first electromagnetic block to realize reciprocating conveying; the sand discharge valve pipe is connected to the simulation chamber to facilitate the directional discharge of sand; the sand filter plate has an inclined surface and a semi-circular arc-shaped sand discharge arc surface. The inclined surface guides the sand or medium to the sand discharge arc surface, and the sand discharge arc surface serves as the conveying track of the simulated spiral rod to convey the sand to the designated position. The sand is fed into the simulation chamber through the sand inlet pipe. The sand mixes with the water flow in the simulated seawater chamber and is continuously conveyed by the simulated screw rod through the inclined surface of the filter plate and the discharge arc surface. The discharge motor drives the first electromagnetic block to reciprocate, and the magnetic force drives the first magnetic block and the simulated screw rod to rotate, achieving intermittent sand propulsion and discharge. The sand is then discharged into the collection system through the discharge valve pipe. The liquid is separated by the filter plate and enters the liquid recovery chamber, achieving media circulation. Utilizing the spiral conveying action of the simulated screw rod on the discharge arc surface, combined with magnetic transmission and an elastic resetting structure, continuous movement and directional discharge of sand under the action of water flow are achieved, while maintaining media separation and recovery. This scheme effectively simulates the coupled scouring environment of sea sand and water in a stable and controllable manner, ensuring uniform sand supply and efficient media circulation, significantly improving the realism of the environmental simulation and the repeatability of experimental data.

[0015] Furthermore, the environmental simulation mechanism also includes a side panel door for opening and closing, a lead screw and slide rail, an opening and closing motor, an opening and closing lead screw, and an opening and closing slide rod. The opening and closing motor is fastened to the side panel door, the opening and closing motor is driven to the lead screw, the lead screw and the lead screw and slide rail are threaded together, the opening and closing slide rod and the side panel door are fastened together, the opening and closing slide rod and the lead screw and slide rail are slidably connected, and the lead screw and slide rail are fastened to the test chamber. The clamping mechanism includes a winding assembly and a tensioning assembly. The winding assembly is fastened to the side panel door for opening and closing, and the tensioning assembly is fastened to the test chamber.

[0016] By adopting the above technical solution, the opening and closing motor is securely connected to the opening and closing side panel door and drives the opening and closing screw to rotate through transmission. The opening and closing screw is threadedly connected to the screw slide rail, realizing linear movement along the slide rail direction. The opening and closing slide rod is securely connected to the opening and closing side panel door and slides in cooperation with the screw slide rail, thereby realizing the smooth opening and closing of the side panel door under the drive of the opening and closing motor. The screw slide rail is securely connected to the test chamber to ensure stable operation of the mechanism. The clamping mechanism consists of a winding assembly and a tensioning assembly. The winding assembly is securely connected to the opening and closing side panel door, realizing movement and position adjustment with the opening and closing of the door. The tensioning assembly is securely connected to the test chamber, providing fixation and tension for the test workpiece. Before the test, the opening and closing motor starts and drives the opening and closing screw to rotate, which drives the opening and closing slide rod and the side panel door to slide smoothly along the screw slide rail through threaded transmission, realizing the opening or closing of the test chamber side panel door. The winding assembly moves with the side panel door to a suitable position for workpiece installation, and the tensioning assembly remains at the fixed end of the test chamber, clamping the workpiece through cooperation. The side panel door is precisely displaced by a screw-rail pair driven by an opening and closing motor. An opening and closing slide bar provides stable guidance, and the winding assembly adjusts its position by moving the door. The tensioning assembly is fixed to the test chamber to form a clamping reference surface. Together, they clamp and adjust the workpiece. This design achieves automatic opening and closing of the test chamber side panel door and flexible arrangement of the clamping mechanism, making workpiece installation and removal more convenient, improving test preparation efficiency, and ensuring the accuracy and stability of clamping and positioning.

[0017] Furthermore, the winding assembly includes a lifting electric slide rail, a telescopic electric cylinder, an electric arc slide rail, a rotary motor, an arc block, a first electric gripper, a single-sided electric gripper, a release rotary motor, and a rotary plate. The lifting electric slide rail is fastened to the opening and closing side panel door, the lifting electric slide rail is driven by the telescopic electric cylinder, the telescopic electric cylinder is driven by the electric arc slide rail, the telescopic electric cylinder is driven by the rotary motor, the electric arc slide rail is driven by the arc block, the release rotary motor is fastened to the arc block, the release rotary motor is driven by the rotary plate, the single-sided electric gripper is fastened to the rotary plate, and the single-sided electric gripper abuts against the tensioning assembly.

[0018] By adopting the above technical solution, the lifting electric slide rail is firmly connected to the opening and closing side panel door, responsible for driving the telescopic electric cylinder to rise and fall vertically; the telescopic electric cylinder, the electric arc slide rail, and the rotary motor are all connected by transmission, adjusting the position of the arc slide rail and driving the rotary motor to move horizontally by extending and retracting the stroke; the electric arc slide rail is connected by transmission to the arc block to realize the arc trajectory adjustment of the clamping position; the release rotary motor is firmly connected to the arc block and connected by transmission to the rotating plate, thereby driving the rotating plate to rotate in the plane; a single-sided electric gripper is fixed on the rotating plate and abuts against the tensioning assembly to clamp the workpiece; the first electric gripper is installed on the arc block for clamping and cooperation on the other side. In the test preparation stage, the lifting electric slide rail drives the telescopic electric cylinder to move up and down, adjusting the gripper assembly to a suitable height; the telescopic electric cylinder pushes the electric arc slide rail to move along the arc path, and the rotary motor drives the gripper assembly to adjust the angle; the release rotary motor starts, and the rotating plate drives the single-sided electric gripper to rotate to the designated clamping position, working together with the gripper on the tensioning assembly to complete the workpiece positioning and fixing. Vertical position adjustment is achieved via a lifting electric slide rail, while a telescopic electric cylinder provides forward and backward displacement and rotational driving force. The electric arc-shaped slide rail, in conjunction with an arc-shaped block, enables the gripper to move along an arc-shaped path. A release rotary motor and a rotating plate provide planar rotation adjustment. Ultimately, the first electric gripper and a single-sided electric gripper form a clamping mechanism on one side while the other side is suspended. The flexible clamping angle allows for adaptation to workpieces of different sizes and shapes, enabling rapid and stable clamping, improving test preparation efficiency and clamping reliability.

[0019] Furthermore, the stretching assembly includes a single-sided electric gripper, a stretching cylinder, a self-locking motor, a self-locking plate, a self-locking elastic element, a self-locking block, and an abutment block. The single-sided electric gripper and the single-sided electric gripper clamp and abut each other. The stretching cylinder and the test chamber are fastened together. The stretching cylinder and the self-locking motor are driven together. The self-locking motor and the self-locking plate are driven together. The single-sided electric gripper and the self-locking plate are fastened together. The self-locking elastic element and the single-sided electric gripper are fastened together. The self-locking block and the single-sided electric gripper are slidably connected. The self-locking elastic element and the self-locking block are fastened together. The abutment block and the self-locking motor are fastened together. The abutment block and the self-locking block abut and drive each other. The abutment block is arc-shaped and is used to prevent the workpiece from falling off when the single-sided electric gripper rotates.

[0020] By adopting the above technical solution, the single-sided electric gripper and the single-sided electric gripper clamp the workpiece relative to each other, forming a stable positioning and conveying clamping; the electric cylinder is fixed to the test chamber, providing power for tensile loading through its telescopic movement, and is connected to the self-locking motor; the self-locking motor drives the self-locking plate to move, the self-locking plate is fixedly connected to the single-sided electric gripper, and the self-locking elastic element is fixedly connected to the single-sided electric gripper, providing a return and buffering effect; the self-locking block is slidably connected to the single-sided electric gripper and is fixedly engaged with the self-locking elastic element to ensure that it has the ability to follow the self-locking when the gripper position changes; the abutment block is fixedly connected to the self-locking motor and abuts and drives the self-locking block. The abutment block has an arc-shaped structure, which supports and protects the workpiece when the single-sided electric gripper rotates, preventing it from falling off. During the clamping phase, the single-sided electric gripper and the single-sided electric gripper close to clamp the workpiece. During the stretching phase, the stretching electric cylinder pushes the already self-locking single-sided electric gripper, causing the workpiece to be stretched and subjected to tensile forces on both sides. The self-locking mechanism maintains the stability of the gripper position during the force application process, and the self-locking elastic element assists in returning to its original position when released. When the gripper rotates or adjusts its angle, the abutment block contacts the self-locking block and prevents the workpiece from slipping. The stretching electric cylinder provides the driving force, and the self-locking motor and self-locking plate form a position lock. Combined with the elastic limiting structure of the self-locking elastic element and the self-locking block, the stability and adjustability of the gripper during the stretching process are achieved. The arc surface of the abutment block contacts the self-locking block to provide continuous support, preventing the workpiece from falling off due to gravity or tensile force. The effect of this solution is that it can achieve controllable stretching while ensuring stable workpiece clamping, and has dual protection of self-locking anti-slip and elastic buffer, significantly improving the safety, stability and adaptability of the stretching test.

[0021] Furthermore, the testing mechanism includes an industrial camera, an electric displacement stage, a positioning cylinder, and a conductivity probe. The industrial camera is securely connected to the test chamber, the electric displacement stage is securely connected to the test chamber, the electric displacement stage is driven by the positioning cylinder, and the positioning cylinder is driven by the conductivity probe.

[0022] By adopting the above technical solution, the industrial camera is firmly connected to the test chamber for high-definition imaging and video recording of the workpiece surface condition during the test. The electric displacement stage is also firmly connected to the test chamber and forms a transmission connection with the positioning cylinder to achieve multi-axis precise adjustment of the detection position. The positioning cylinder is transmission-connected to the conductivity probe, driving the probe to contact the workpiece surface at a designated position for conductivity measurement. During the test, the industrial camera acquires images of workpiece surface changes in real time and transmits them to the data processing system. When conductivity testing is required, the electric displacement stage moves the positioning cylinder and conductivity probe to the target detection point according to a preset program. The positioning cylinder pushes the conductivity probe to contact the workpiece surface, completing the conductivity signal acquisition. The industrial camera utilizes optical imaging technology to achieve non-contact monitoring, the electric displacement stage is used to position the detection point, and the positioning cylinder uses pneumatic or electric thrust to drive the conductivity probe to form stable contact with the workpiece surface. The electrical signal acquired by the conductivity probe can reflect changes in the conductivity of the workpiece surface, thereby assessing corrosion, coating damage, and other conditions. This achieves an organic combination of image monitoring and electrical performance testing, enabling real-time observation of changes in the surface morphology of the workpiece and simultaneous acquisition of its electrical characteristic data, thereby improving detection accuracy and providing analytical basis for test results.

[0023] Furthermore, the temperature control mechanism includes a heating chamber, a cooling chamber, a recovery pump, a circulation pump, and a temperature control tube. The cooling chamber and the circulation pump are connected, the circulation pump and the temperature control tube are connected, the temperature control tube is arranged in a serpentine pattern, the temperature control tube is connected to the heating chamber, the recovery pump is connected to the dripping nozzle, and the recovery pump is connected to the liquid recovery chamber. The heating chamber, cooling chamber, and circulation pump are all securely connected to the test chamber.

[0024] By adopting the above technical solution, the cooling chamber is connected to the circulating pump to provide low-temperature medium circulation. The circulating pump is connected to the serpentine temperature control tubes, enabling the cooling or heating medium to form a large-area heat exchange path inside the test chamber. The other end of the temperature control tubes is connected to the heating chamber, which provides a stable heat source for the medium. The recovery pump is connected to the dripping nozzle to recycle the recovered liquid back to the nozzle. At the same time, the recovery pump is connected to the liquid recovery chamber to recover the medium liquid collected during the test back into the system. Before the test begins, the target temperature is set according to the requirements. The circulating pump starts and drives the medium in the cooling chamber or heating chamber into the temperature control tubes. The serpentine temperature control tubes fully exchange heat with the test environment inside the test chamber to achieve temperature rise and fall control. After the test medium is used, the liquid is collected through the liquid recovery chamber and transported by the recovery pump to the dripping nozzle to re-enter the test cycle. A heating chamber and a cooling chamber provide high-temperature and low-temperature media respectively. A circulating pump drives the media to circulate within a temperature-controlled tube. The serpentine arrangement increases the contact area with the test space, thereby improving heat exchange efficiency. A recovery pump is responsible for returning the collected media in a closed loop, forming an energy-saving circulation system. During the experiment, the ambient temperature is regulated and controlled, while reducing media consumption, lowering operating costs, and ensuring the stability and repeatability of the test temperature conditions, thus improving the reliability and adaptability of environmental simulation experiments.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] The environmental simulation mechanism of this experimental setup uses a test chamber as a sealed carrying space. A dripping nozzle and salt spray generator are installed at the top, while a high-pressure pump, pulse valve, and nozzle are arranged at the bottom. The bottom is equipped with a combination structure of a simulation chamber, a filter plate, and a simulated spiral rod. The upper nozzle and salt spray generator are hinged and connected to simulate salt spray corrosion and droplet impact. The lower high-pressure pump controls the intermittent spraying of the nozzle through a pulse valve, forming an impact flow field. The filter plate in the bottom simulation chamber has inclined surfaces and semi-circular arc-shaped sand-discharging surfaces, which, together with the spiral conveying action of the simulated spiral rod and the sand inlet pipe, realize the cyclic simulation of a water-sand coupled scouring environment. The magnetic pole repulsion transmission between the first electromagnetic block and the first magnetic block, and the buffer reset of the first elastic element, ensure the rhythm and stability of sand conveying. The clamping mechanism mechanically combines the opening and closing of the side panel door with the guiding transmission relationship of the screw and slide rail. The opening and closing of the side panel door is achieved by the opening and closing motor driving the opening and closing screw. The screw and slide rail thread pair provide linear motion, and the opening and closing slide rail ensures the smooth guidance of the door. The winding assembly consists of a lifting electric slide rail, a telescopic electric cylinder, an electric arc slide rail, a rotating motor, an arc block, and a gripper. It achieves three-dimensional positioning of the gripper through vertical lifting, arc trajectory adjustment, and rotation of the rotating plate. The stretching assembly consists of a single-sided stretching electric gripper, a stretching electric cylinder, a self-locking mechanism, and an abutment block. The stretching electric cylinder provides the main tensile force, while the self-locking plate and self-locking elastic element lock and buffer the gripper position. The arc-shaped abutment block holds the workpiece in place during gripper rotation to prevent slippage, ensuring stability and safety during the loading process. The temperature control mechanism consists of a heating chamber, a cooling chamber, a circulating pump, a recovery pump, and a serpentine arrangement of temperature control tubes. The cooling chamber is connected to the circulating pump to provide low-temperature circulation, while the heating chamber is connected to the temperature control tubes to provide high-temperature circulation. The serpentine temperature control tubes have a large coverage area and high heat exchange efficiency within the test chamber. The recovery pump is bidirectionally connected to the liquid recovery chamber and the dripping nozzle, enabling closed-loop recovery and re-spraying of the test medium. Each component is fastened and connected to the pipeline to form a complete cooling and heating switching and media circulation path, which can accurately control the ambient temperature and ensure the efficient use of the test media. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the environmental simulation component structure of the present invention;

[0029] Figure 3 This is a schematic diagram of the sliding protrusion structure of the present invention;

[0030] Figure 4 This is a schematic diagram of the winding assembly structure of the present invention;

[0031] Figure 5 This is a schematic diagram of the tensile component structure of the present invention;

[0032] Figure 6This is a schematic diagram of the self-locking block structure of the present invention;

[0033] Figure 7 This is a schematic diagram of the detection mechanism of the present invention;

[0034] Figure 8 This is a schematic diagram of the temperature control mechanism of the present invention.

[0035] In the diagram: 1. Environmental simulation mechanism; 11. Test chamber; 12. Supply assembly; 121. Drip nozzle; 122. Salt spray generator; 123. High-pressure pump; 124. Nozzle; 125. Pulse valve; 13. Environmental simulation assembly; 131. Simulation chamber; 132. Simulation screw rod; 1321. Sliding protrusion; 133. Sand inlet pipe; 134. Sand filter plate; 1341. Seawater simulation chamber; 1342. Liquid recovery chamber; 1343. Inclined surface; 1344. Sand discharge arc surface; 135. Sand discharge motor; 136. Sand discharge valve pipe; 137. First elastic element; 138. First electromagnetic block; 1381. Sliding groove; 139. First magnetic block; 14. Opening and closing side panel door; 15. Screw slide rail; 16. Opening and closing motor; 17. Opening and closing screw; 18. Opening and closing... 1. Slide bar; 2. Clamping mechanism; 21. Rewinding assembly; 211. Lifting electric slide rail; 212. Telescopic electric cylinder; 213. Electric arc slide rail; 214. Rotary motor; 215. Arc block; 216. First electric gripper; 217. Single-sided electric gripper; 218. Release rotary motor; 219. Rotary plate; 22. Tensioning assembly; 221. Tensioning single-sided electric gripper; 222. Tensioning electric cylinder; 223. Self-locking motor; 224. Self-locking plate; 225. Self-locking elastic element; 226. Self-locking block; 227. Abutment block; 3. Detection mechanism; 31. Industrial camera; 32. Electric displacement stage; 33. Positioning cylinder; 34. Conductivity probe; 4. Temperature control mechanism; 41. Heating box; 42. Cooling box; 43. Recovery pump; 44. Circulation pump; 45. Temperature control tube. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Please see Figure 1 - Figure 8 As shown, the present invention provides a technical solution for a chain corrosion testing device with complex environment simulation function:

[0038] The test apparatus includes an environmental simulation mechanism 1, a clamping mechanism 2, a detection mechanism 3, and a temperature control mechanism 4. The clamping mechanism 2 and the environmental simulation mechanism 1 are tightly connected, the detection mechanism 3 and the environmental simulation mechanism 1 are tightly connected, and the temperature control mechanism 4 and the environmental simulation mechanism 1 are tightly connected.

[0039] By adopting the above technical solution, the environmental simulation mechanism 1 provides a unified support platform and a closed spatial environment for all mechanisms. The clamping mechanism 2 uses multi-dimensional clamps to adapt and clamp the workpiece, and simulates the applicable environment through stretching and rolling actions. The detection mechanism 3 provides feedback and realizes status monitoring. The temperature control mechanism 4 regulates the ambient temperature through the circulation of hot and cold media. Thus, the combined effects of multiple factors such as temperature, humidity, corrosiveness, and stress in the test environment are realized.

[0040] Furthermore, the environmental simulation mechanism 1 includes a test chamber 11, a supply component 12, and an environmental simulation component 13. The clamping mechanism 2, the detection mechanism 3, and the temperature control mechanism 4 are all securely connected to the test chamber 11. The supply component 12 is securely connected to the test chamber 11, and the environmental simulation component 13 is securely connected to the test chamber 11. The environmental simulation component 13 is located at the bottom of the test chamber 11.

[0041] By adopting the above technical solution, the test chamber 11, as a sealed core space, is used to hold the test medium and the workpiece under test. The supply component 12 quantitatively delivers liquid, aerosol, or particulate media into the test chamber 11 from above. The environmental simulation component 13 generates or processes the simulated medium at the bottom of the test chamber 11, realizing continuous change and recycling of environmental conditions. The test chamber 11 provides sealing and structural support to ensure controllable internal environment. The supply component 12 accurately introduces the required medium into the test area by controlling the spraying, dripping, or conveying methods. The environmental simulation component 13 completes the generation, separation, or recycling of the medium at the bottom and interacts with the gas-liquid flow inside the test chamber 11 to achieve comprehensive simulation of environmental factors such as temperature, humidity, corrosivity, and scour. The layered arrangement of the test chamber 11, supply component 12, and environmental simulation component 13 makes the environmental conditions more diverse and the recycling rate of the test medium high.

[0042] Furthermore, the supply assembly 12 includes a dripping nozzle 121, a salt spray generator 122, a high-pressure pump 123, a nozzle 124, and a pulse valve 125. The dripping nozzle 121 is hinged to the test chamber 11, the salt spray generator 122 is connected to the dripping nozzle 121, the dripping nozzle 121 and the salt spray generator 122 are located above the test chamber 11, the high-pressure pump 123 is connected to the pulse valve 125, the pulse valve 125 is connected to the nozzle 124, and the high-pressure pump 123, the nozzle 124 and the pulse valve 125 are located below the test chamber 11.

[0043] By adopting the above technical solution, the supply component 12 consists of a dripping nozzle 121, a salt spray generator 122, a high-pressure pump 123, a nozzle 124, and a pulse valve 125. The dripping nozzle 121 is installed above the test chamber 11 by a hinge and its angle is adjustable. The salt spray generator 122 is connected to the dripping nozzle 121 and can be used to atomize the salt solution and deliver it evenly to the test area through the nozzle. The dripping nozzle 121 and the salt spray generator 122 are arranged as a whole above the test chamber 11 to facilitate the simulation of natural environments such as rainfall and salt spray. The high-pressure pump 123 is arranged below the test chamber 11 and is connected to the pulse valve 125. The pulse valve 125 is then connected to the nozzle 124. Through the pressure provided by the high-pressure pump 123 and the periodic control of the pulse valve 125, the intermittent injection of high-energy fluid in the nozzle 124 is realized. At the start of the experiment, the salt spray generator 122 is activated, atomizing the salt solution and sending it into the test chamber 11 through the dripping nozzle 121 to form a uniform salt spray environment. Simultaneously, the dripping nozzle 121 can add liquid media according to the test requirements. The high-pressure pump 123 is activated under the control system's command, pushing liquid through the pulse valve 125 for periodic release, and then impacting the surrounding area through the nozzle 124 to simulate wave impact, sand and water erosion, and other conditions. The upper dripping nozzle 121 and the salt spray generator 122 work together to achieve corrosive atomization and droplet simulation, while the lower high-pressure pump 123, pulse valve 125, and nozzle 124 cooperate to form a controllable impact flow field. The superposition of the upper and lower media achieves multi-factor environmental simulation. The effect of this scheme is that it can simultaneously or alternately achieve multiple environmental stress loadings such as salt spray corrosion, droplet erosion, and high-pressure erosion in the same test space, improving the comprehensiveness and realism of the test conditions. At the same time, the reasonable distribution of the components and the stable supply of media ensure the reliability and repeatability of the test results.

[0044] Furthermore, the environmental simulation component 13 includes a simulation box 131, a simulation screw rod 132, a sand inlet pipe 133, a sand filter plate 134, a sand discharge motor 135, a sand discharge valve pipe 136, a first elastic element 137, a first electromagnetic block 138, and a first magnetic block 139. The simulation box 131 and the test chamber 11 are fastened together; the simulation screw rod 132 and the sand filter plate 134 are rotatably connected; the simulation screw rod 132 and the test chamber 11 are rotatably connected; the sand discharge motor 135 and the test chamber 11 are fastened together; the sand discharge motor 135 and the first electromagnetic block 138 are driven together; the first electromagnetic block 138 and the first magnetic block 139 are driven by magnetic pole repulsion; the first magnetic block 139 and the test chamber 11 are slidably connected; the first elastic element 137 and the first electromagnetic block 138 are fastened together; the first elastic element 137 and the first magnetic block 139 are fastened together; and the first magnetic block 139 and the simulation screw rod... 132 is fastened together, the simulated spiral rod 132 and the first electromagnetic block 138 are slidably connected, the first electromagnetic block 138 is provided with a sliding groove 1381, the simulated spiral rod 132 is provided with a sliding protrusion 1321, the sliding protrusion 1321 and the sliding groove 1381 are slidably connected, the sand discharge valve pipe 136 is connected to the simulation box 131, the sand filter plate 134 and the simulation box 131 are fastened together, the upper part of the simulation box 131 and the sand filter plate 134 is provided with a seawater simulation chamber 1341, the lower part of the simulation box 131 and the sand filter plate 134 is provided with a liquid recovery chamber 1342, the sand filter plate 134 is provided with an inclined surface 1343, the sand discharge arc surface 1344 is provided with a sand discharge arc surface 1344, the sand discharge arc surface 1344 is semi-circular arc-shaped, the inclined surface 1343 is used to flow the simulated medium into the sand discharge arc surface 1344, and the sand discharge arc surface 1344 is used to simulate the spiral rod 132 to transport sand on it.

[0045] By employing the aforementioned technology, the simulation chamber 131 is securely connected to the test chamber 11, forming an independent simulated environment cavity; the simulation screw rod 132 is rotatably connected to the sand filter plate 134 and the test chamber 11 respectively, and is securely fitted with the first magnetic block 139 to realize sand conveying and agitation; the sand inlet pipe 133 is used to introduce sand into the simulation chamber 131, and the sand filter plate 134 is securely connected to the simulation chamber 131, dividing the cavity into the upper seawater simulation cavity 1341 and the lower liquid recovery cavity 1342; the sand discharge motor 135 is securely fixed to the test chamber 11, and drives the first electromagnetic block 138 to move through transmission, and the magnetic poles of the first electromagnetic block 138 and the first magnetic block 139 repel each other and slide. In conjunction with the first elastic element 137, it is fastened to the first electromagnetic block 138 and the first magnetic block 139 to achieve force buffering and reset; the simulated spiral rod 132 is slidably connected to the first electromagnetic block 138, and its sliding protrusion 1321 cooperates with the sliding groove 1381 on the first electromagnetic block 138 to achieve reciprocating conveying; the sand discharge valve pipe 136 is connected to the simulated box 131 to facilitate the directional discharge of sand; the sand filter plate 134 is provided with an inclined surface 1343 and a semi-circular arc-shaped sand discharge arc surface 1344. The inclined surface 1343 guides the sand or medium to the sand discharge arc surface 1344, and the sand discharge arc surface 1344 serves as the conveying track of the simulated spiral rod 132 to transport the sand to the designated position. Sand is fed into the simulation chamber 131 via the sand inlet pipe 133. After mixing with the sand in the seawater simulation chamber 1341, the sand is continuously conveyed by the simulated spiral rod 132 through the inclined surface 1343 of the filter plate 134 and the sand discharge arc surface 1344. The sand discharge motor 135 drives the first electromagnetic block 138 to reciprocate, which in turn drives the first magnetic block 139 and the simulated spiral rod 132 to rotate, achieving intermittent propulsion and discharge of the sand. The sand is then discharged into the collection system via the sand discharge valve pipe 136. Liquid is separated through the filter plate 134 and enters the liquid recovery chamber 1342, achieving media circulation. Utilizing the spiral conveying action of the simulated spiral rod 132 on the sand discharge arc surface 1344, combined with magnetic transmission and an elastic element reset structure, continuous movement and directional discharge of sand under the action of water flow are achieved, while maintaining media separation and recovery. The solution effectively simulates the coupled scouring environment of sea sand and water in a stable and controllable manner, ensuring uniform sand supply and efficient media circulation, and significantly improving the realism of the environmental simulation and the repeatability of the test data.

[0046] Furthermore, the environmental simulation mechanism 1 also includes a side panel door 14, a lead screw rail 15, a motor 16, a lead screw 17, and a sliding rod 18. The motor 16 is fastened to the side panel door 14, the motor 16 is driven to the lead screw 17, the lead screw 17 is threaded to the lead screw rail 15, the sliding rod 18 is fastened to the side panel door 14, the sliding rod 18 is slidably connected to the lead screw rail 15, and the lead screw rail 15 is fastened to the test chamber 11. The clamping mechanism 2 includes a winding assembly 21 and a tensioning assembly 22. The winding assembly 21 is fastened to the side panel door 14, and the tensioning assembly 22 is fastened to the test chamber 11.

[0047] By adopting the above technical solution, the opening and closing motor 16 is fixedly connected to the opening and closing side panel door 14 and drives the opening and closing screw 17 to rotate through transmission. The opening and closing screw 17 is threadedly connected to the screw slide rail 15 to achieve linear movement along the slide rail direction. The opening and closing slide rod 18 is fixedly connected to the opening and closing side panel door 14 and slides with the screw slide rail 15, thereby realizing the smooth opening and closing of the side panel door under the drive of the opening and closing motor 16. The screw slide rail 15 is fixedly connected to the test chamber 11 to ensure stable operation of the mechanism. The clamping mechanism 2 consists of a winding assembly 21 and a tensioning assembly 22. The winding assembly 21 is fixedly connected to the opening and closing side panel door 14 to realize movement and position adjustment with the opening and closing of the door. The tensioning assembly 22 is fixedly connected to the test chamber 11 to provide fixation and tension for the test workpiece. Before the test, the opening / closing motor 16 starts and drives the opening / closing screw 17 to rotate. Through threaded transmission, the opening / closing slide bar 18 and the side door slide smoothly along the screw slide rail 15, realizing the opening or closing of the side door of the test chamber 11. The winding assembly 21 moves with the side door to a suitable position for workpiece installation, while the tensioning assembly 22 remains at the fixed end of the test chamber 11, clamping the workpiece in cooperation. The opening / closing motor 16 drives the screw slide rail 15 threaded pair to achieve precise displacement of the side door, the opening / closing slide bar 18 provides stable guidance, the winding assembly 21 adjusts its position by moving the door, and the tensioning assembly 22 is fixed on the test chamber 11 to form a clamping reference surface. The two work together to complete the clamping and adjustment of the workpiece. The effect of this scheme is to realize the automatic opening and closing of the side door of the test chamber 11 and the flexible arrangement of the clamping mechanism 2, making workpiece installation and disassembly more convenient, improving test preparation efficiency, and ensuring the accuracy and stability of clamping and positioning.

[0048] Furthermore, the winding assembly 21 includes a lifting electric slide rail 211, a telescopic electric cylinder 212, an electric arc-shaped slide rail 213, a rotary motor 214, an arc-shaped block 215, a first electric gripper 216, a single-sided electric gripper 217, a release rotary motor 218, and a rotating plate 219. The lifting electric slide rail 211 is fastened to the opening and closing side panel door 14. The lifting electric slide rail 211 is driven to the telescopic electric cylinder 212. The telescopic electric cylinder 212 is driven to the electric arc-shaped slide rail 213. The telescopic electric cylinder 212 is driven to the rotary motor 214. The electric arc-shaped slide rail 213 is driven to the arc-shaped block 215. The release rotary motor 218 is fastened to the arc-shaped block 215. The release rotary motor 218 is driven to the rotating plate 219. The single-sided electric gripper 217 is fastened to the rotating plate 219. The single-sided electric gripper 217 abuts against the tensioning assembly 22.

[0049] By adopting the above technical solution, the lifting electric slide rail 211 is fixedly connected to the opening and closing side panel door 14, and is responsible for driving the telescopic electric cylinder 212 to rise and fall vertically; the telescopic electric cylinder 212 is connected to the electric arc slide rail 213 and the rotating motor 214, and the position of the arc slide rail is adjusted by the telescopic stroke and the rotating motor 214 is driven to move horizontally; the electric arc slide rail 213 is connected to the arc block 215 to realize the arc trajectory adjustment of the clamping position; the release rotating motor 218 is fixedly connected to the arc block 215 and is connected to the rotating plate 219, thereby driving the rotating plate 219 to rotate in the plane; the single-sided electric gripper 217 is fixed on the rotating plate 219 and abuts against the tensioning component 22 to clamp the workpiece; the first electric gripper 216 is installed on the arc block 215 for clamping and cooperation on the other side. During the test preparation phase, the lifting electric slide rail 211 drives the telescopic electric cylinder 212 to move up and down, adjusting the gripper assembly to a suitable height. The telescopic electric cylinder 212 pushes the electric arc slide rail 213 along the arc path, and the rotary motor 214 drives the gripper assembly to adjust its angle. The release rotary motor 218 starts, and the rotating plate 219 drives the single-sided electric gripper 217 to rotate to the designated clamping position, working in conjunction with the gripper on the tensioning assembly 22 to complete the workpiece positioning and fixation. The lifting electric slide rail 211 achieves vertical position adjustment, the telescopic electric cylinder 212 provides forward and backward displacement and rotational driving force, the electric arc slide rail 213 and the arc block 215 cooperate to realize the arc path movement of the gripper, and the release rotary motor 218 and the rotating plate 219 provide planar rotation adjustment. Finally, the first electric gripper 216 and the single-sided electric gripper 217 form a clamping position on one side while the other side is suspended. The clamping angle is flexible, thus adapting to workpieces of different sizes and shapes, achieving fast and stable clamping, improving test preparation efficiency and clamping reliability.

[0050] Furthermore, the tensile assembly 22 includes a single-sided electric gripper 221, a tensile electric cylinder 222, a self-locking motor 223, a self-locking plate 224, a self-locking elastic element 225, a self-locking block 226, and an abutment block 227. The single-sided electric gripper 217 clamps and abuts against the single-sided electric gripper 221. The tensile electric cylinder 222 is fastened to the test chamber 11. The tensile electric cylinder 222 is driven by the self-locking motor 223. The self-locking motor 223 is driven by the self-locking plate 224. The claw 217 is fastened to the self-locking plate 224, the self-locking elastic element 225 is fastened to the stretching single-sided electric claw 221, the self-locking block 226 is slidably connected to the stretching single-sided electric claw 221, the self-locking elastic element 225 and the self-locking block 226 are fastened to each other, the abutting block 227 is fastened to the self-locking motor 223, the abutting block 227 and the self-locking block 226 abut against each other for transmission, the abutting block 227 is arc-shaped, the abutting block 227 is used to prevent the workpiece from falling off when the stretching single-sided electric claw 221 rotates.

[0051] By adopting the above technical solution, the single-sided electric gripper 217 and the single-sided stretching electric gripper 221 clamp the workpiece relative to each other, forming a stable positioning and conveying clamping; the stretching electric cylinder 222 is fastened to the test chamber 11, providing power for stretching loading through telescopic movement, and is connected to the self-locking motor 223; the self-locking motor 223 drives the self-locking plate 224 to move, the self-locking plate 224 is fastened to the single-sided electric gripper 217, and the self-locking elastic element 225 is fastened to the single-sided stretching electric gripper 221, providing return and buffering functions; the self-locking block 226 is slidably connected to the single-sided stretching electric gripper 221 and is fastened to the self-locking elastic element 225, ensuring that it has the ability to follow the self-locking when the gripper position changes; the abutment block 227 is fastened to the self-locking motor 223 and abuts and drives the self-locking block 226, the abutment block 227 has an arc-shaped structure, and supports and protects the workpiece when the single-sided stretching electric gripper 221 rotates, preventing it from falling off. During the clamping phase, the single-sided electric gripper 217 and the single-sided stretching electric gripper 221 close to clamp the workpiece. During the stretching phase, the stretching electric cylinder 222 pushes the already self-locking stretching electric gripper 221, causing the workpiece to be stretched and subjected to tension on both sides. The self-locking mechanism maintains the stability of the gripper position during the force application process, and the self-locking elastic element 225 assists in returning to its original position when released. When the gripper rotates or adjusts its angle, the abutment block 227 contacts the self-locking block 226 and prevents the workpiece from slipping. The stretching electric cylinder 222 provides the active force, and the self-locking motor 223 and the self-locking plate 224 form a position lock. Combined with the elastic limiting structure of the self-locking elastic element 225 and the self-locking block 226, the stability and adjustability of the gripper are achieved during the stretching process. The arc surface of the abutment block 227 contacts the self-locking block 226 to provide continuous support and prevent the workpiece from falling off due to gravity or tension. The solution achieves controllable stretching while ensuring stable workpiece clamping, and features dual protection of self-locking anti-slip and elastic buffering, significantly improving the safety, stability and adaptability of tensile testing.

[0052] Furthermore, the testing mechanism 3 includes an industrial camera 31, an electric displacement stage 32, a positioning cylinder 33, and a conductivity probe 34. The industrial camera 31 is fastened to the test chamber 11, the electric displacement stage 32 is fastened to the test chamber 11, the electric displacement stage 32 is driven to the positioning cylinder 33, and the positioning cylinder 33 is driven to the conductivity probe 34.

[0053] By adopting the above technical solution, the industrial camera 31 is firmly connected to the test chamber 11 for high-definition imaging and video recording of the workpiece surface condition during the test; the electric displacement stage 32 is also firmly connected to the test chamber 11 and forms a transmission connection with the positioning cylinder 33 to achieve multi-axis precise adjustment of the detection position; the positioning cylinder 33 is transmissionally connected to the conductivity probe 34, driving the probe to contact the workpiece surface at a designated position to measure conductivity. During the test, the industrial camera 31 acquires images of changes in the workpiece surface in real time and transmits them to the data processing system; when conductivity performance testing is required, the electric displacement stage 32 moves the positioning cylinder 33 and the conductivity probe 34 to the target detection point according to a preset program, and the positioning cylinder 33 pushes the conductivity probe 34 to contact the workpiece surface to complete the acquisition of conductivity signals. The industrial camera 31 utilizes optical imaging technology to achieve non-contact status monitoring. The electric displacement stage 32 is used to position the detection site. The positioning cylinder 33 uses pneumatic or electric thrust to drive the conductivity probe 34 to form stable contact with the workpiece surface. The electrical signal collected by the conductivity probe 34 reflects changes in the workpiece surface conductivity, thereby assessing corrosion, coating damage, and other conditions. This achieves an organic combination of image monitoring and electrical performance testing, enabling real-time observation of workpiece surface morphology changes and simultaneous acquisition of its electrical characteristic data, thus improving detection accuracy and providing analytical basis for test results.

[0054] Furthermore, the temperature control mechanism 4 includes a heating chamber 41, a cooling chamber 42, a recovery pump 43, a circulation pump 44, and a temperature control tube 45. The cooling chamber 42 is connected to the circulation pump 44, the circulation pump 44 is connected to the temperature control tube 45, the temperature control tube 45 is arranged in a serpentine pattern, the temperature control tube 45 is connected to the heating chamber 41, the recovery pump 43 is connected to the dripping nozzle 121, and the recovery pump 43 is connected to the liquid recovery chamber 1342. The heating chamber 41, the cooling chamber 42, and the circulation pump 44 are all securely connected to the test chamber 11.

[0055] By adopting the above technical solution, the cooling tank 42 is connected to the circulating pump 44 to provide low-temperature medium circulation. The circulating pump 44 is connected to the serpentine temperature control tube 45, so that the cooling or heating medium forms a large-area heat exchange path inside the test chamber 11. The other end of the temperature control tube 45 is connected to the heating tank 41, which provides a stable heat source for the medium. The recovery pump 43 is connected to the dripping nozzle 121 to transport the recovered liquid back to the nozzle for recycling. At the same time, the recovery pump 43 is connected to the liquid recovery chamber 1342 to recover the medium liquid collected during the test back into the system. Before the test starts, the target temperature is set according to the requirements. The circulating pump 44 starts to drive the medium in the cooling tank 42 or heating tank 41 into the temperature control tube 45. The serpentine temperature control tube 45 fully exchanges heat with the test environment inside the test chamber 11 to achieve temperature rise and fall control. After the test medium is used, the liquid is collected through the liquid recovery chamber 1342 and transported by the recovery pump 43 to the dripping nozzle 121 to re-enter the test cycle. Heating chamber 41 and cooling chamber 42 provide high-temperature and low-temperature media respectively. Circulating pump 44 drives the media to circulate within temperature control tube 45. The serpentine arrangement increases the contact area with the test space, thereby improving heat exchange efficiency. Recovery pump 43 is responsible for returning the collected media in a closed loop, forming an energy-saving circulation system. During the test, the ambient temperature is regulated and controlled, while reducing media consumption, lowering operating costs, and ensuring the stability and repeatability of test temperature conditions, thus improving the reliability and adaptability of environmental simulation tests.

[0056] Working principle of the invention:

[0057] The environmental simulation mechanism 1 of this test device uses a test chamber 11 as a sealed bearing space. A dripping nozzle 121 and a salt spray generator 122 are installed above, and a high-pressure pump 123, a pulse valve 125 and a nozzle 124 are arranged below. The bottom is equipped with a combination structure of a simulation chamber 131, a filter plate 134 and a simulation screw rod 132. The upper nozzle and salt spray generator 122 are connected and hinged to simulate salt spray corrosion and droplet impact. The lower high-pressure pump 123 controls the nozzle 124 to spray intermittently through the pulse valve 125 to form an impact flow field. The filter plate 134 in the bottom simulation box 131 is provided with inclined surface 1343 and semi-circular arc sand discharge surface 1344. Together with the spiral conveying action of the simulated spiral rod 132 and the feeding of the sand inlet pipe 133, the cycle simulation of the water-sand coupled scouring environment is realized. The magnetic pole repulsion transmission of the first electromagnetic block 138 and the first magnetic block 139 and the buffer reset of the first elastic element 137 ensure the rhythm and stability of the sand conveying. The clamping mechanism 2 combines the guiding transmission relationship between the opening and closing side panel door 14 and the screw slide rail 15 in mechanical structure. The opening and closing of the side panel door is realized by the opening and closing motor 16 driving the opening and closing screw 17. The screw and the slide rail thread pair provide linear motion. The opening and closing slide rod 18 ensures the smooth guidance of the door. The winding assembly 21 consists of a lifting electric slide rail 211, a telescopic electric cylinder 212, an electric arc-shaped slide rail 213, a rotary motor 214, an arc-shaped block 215, and grippers. It achieves three-dimensional positioning of the grippers through vertical lifting, arc-shaped trajectory adjustment, and planar rotation of the rotating plate 219. The stretching assembly 22 consists of a stretching single-sided electric gripper 221, a stretching electric cylinder 222, a self-locking mechanism, and an abutment block 227. The stretching electric cylinder 222 provides the main pulling force, the self-locking plate 224 and the self-locking elastic element 225 lock and buffer the gripper position, and the arc-shaped abutment block 227... The claw holds the workpiece in place during rotation to prevent slippage, ensuring stability and safety during the loading process. The temperature control mechanism 4 consists of a heating chamber 41, a cooling chamber 42, a circulating pump 44, a recovery pump 43, and a serpentine temperature control tube 45. The cooling chamber 42 is connected to the circulating pump 44 to provide low-temperature circulation, while the heating chamber 41 is connected to the temperature control tube 45 to provide high-temperature circulation. The serpentine temperature control tube 45 has a large coverage area and high heat exchange efficiency within the test chamber 11. The recovery pump 43 is bidirectionally connected to the liquid recovery chamber 1342 and the dripping nozzle 121, enabling closed-loop recovery and re-spraying of the test medium. All components are fastened and connected to pipelines to form a complete hot-cold switching and medium circulation path, which can accurately control the ambient temperature while ensuring efficient utilization of the test medium.

[0058] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A chain corrosion testing device with complex environment simulation function, characterized in that: The test device includes an environmental simulation mechanism (1), a clamping mechanism (2), a detection mechanism (3), and a temperature control mechanism (4). The clamping mechanism (2) and the environmental simulation mechanism (1) are fastened together. The detection mechanism (3) and the environmental simulation mechanism (1) are fastened together. The temperature control mechanism (4) and the environmental simulation mechanism (1) are fastened together. The environmental simulation mechanism (1) includes a test chamber (11), a supply component (12), and an environmental simulation component (13). The clamping mechanism (2), the detection mechanism (3), and the temperature control mechanism (4) are all fixedly connected to the test chamber (11). The supply component (12) is fixedly connected to the test chamber (11), and the environmental simulation component (13) is fixedly connected to the test chamber (11). The environmental simulation component (13) is located at the bottom of the test chamber (11). The supply assembly (12) includes a dripping nozzle (121), a salt spray generator (122), a high-pressure pump (123), a nozzle (124), and a pulse valve (125). The dripping nozzle (121) is hinged to the test chamber (11). The salt spray generator (122) is connected to the dripping nozzle (121). The dripping nozzle (121) and the salt spray generator (122) are located above the test chamber (11). The high-pressure pump (123) is connected to the pulse valve (125). The pulse valve (125) is connected to the nozzle (124). The high-pressure pump (123), the nozzle (124), and the pulse valve (125) are located below the test chamber (11). The environmental simulation component (13) includes a simulation box (131), a simulation screw rod (132), a sand inlet pipe (133), a sand filter plate (134), a sand discharge motor (135), a sand discharge valve pipe (136), a first elastic element (137), a first electromagnetic block (138), and a first magnetic block (139). The simulation box (131) and the test chamber (11) are fastened together. The simulation screw rod (132) and the sand filter plate (134) are rotatably connected. The simulation screw rod (132) and the test chamber (11) are rotatably connected. The sand-discharging motor (135) and the test chamber (11) are fastened together. The sand-discharging motor (135) and the first electromagnetic block (138) are driven together. The first electromagnetic block (138) and the first magnetic block (139) are driven by magnetic pole repulsion. The first magnetic block (139) and the test chamber (11) are slidably connected. The first elastic element (137) and the first electromagnetic block (138) are fastened together. The first elastic element (137) and the first magnetic block (139) are fastened together. The first magnetic block (139) and the simulated spiral rod (132) are connected together. The simulated spiral rod (132) and the first electromagnetic block (138) are slidably connected. The first electromagnetic block (138) is provided with a sliding groove (1381). The simulated spiral rod (132) is provided with a sliding protrusion (1321). The sliding protrusion (1321) and the sliding groove (1381) are slidably connected. The sand discharge valve pipe (136) is connected to the simulation box (131). The sand filter plate (134) and the simulation box (131) are tightly connected. The simulation box (131) and the sand filter plate (134) form a... The upper part is provided with a seawater simulation chamber (1341), and the lower part is provided with a liquid recovery chamber (1342) formed by the simulation box (131) and the filter sand plate (134). The filter sand plate (134) is provided with an inclined surface (1343) and a sand discharge arc surface (1344). The sand discharge arc surface (1344) is semi-circular. The inclined surface (1343) is used to flow the simulated medium into the sand discharge arc surface (1344). The sand discharge arc surface (1344) is used to simulate the screw rod (132) conveying sand on it.

2. The chain corrosion testing device with complex environment simulation function according to claim 1, characterized in that: The environmental simulation mechanism (1) further includes a side panel door (14), a lead screw rail (15), a motor (16), a lead screw (17), and a sliding rod (18). The motor (16) and the side panel door (14) are fastened together. The motor (16) and the lead screw (17) are driven together. The lead screw (17) and the lead screw rail (15) are threaded together. The sliding rod (18) and the side panel door (14) are fastened together. The sliding rod (18) and the lead screw rail (15) are slidably connected. The lead screw rail (15) and the test chamber (11) are fastened together. The clamping mechanism (2) includes a winding assembly (21) and a stretching assembly (22). The winding assembly (21) and the side panel door (14) are fastened together. The stretching assembly (22) and the test chamber (11) are fastened together.

3. The chain corrosion testing device with complex environment simulation function according to claim 2, characterized in that: The winding assembly (21) includes a lifting electric slide rail (211), a telescopic electric cylinder (212), an electric arc slide rail (213), a rotary motor (214), an arc block (215), a first electric gripper (216), a single-sided electric gripper (217), a release rotary motor (218), and a rotating plate (219). The lifting electric slide rail (211) is fastened to the opening and closing side panel door (14), and the lifting electric slide rail (211) is driven by the telescopic electric cylinder (212). The electric arc slide rail (213) is connected to the telescopic electric cylinder (212) and the rotary motor (214). The electric arc slide rail (213) and the arc block (215) are connected to each other. The release rotary motor (218) and the arc block (215) are fastened together. The release rotary motor (218) and the rotating plate (219) are connected to each other. The single-sided electric gripper (217) and the rotating plate (219) are fastened together. The single-sided electric gripper (217) and the tensioning assembly (22) abut against each other.

4. The chain corrosion testing device with complex environment simulation function according to claim 3, characterized in that: The tensile assembly (22) includes a single-sided electric gripper (221), a tensile cylinder (222), a self-locking motor (223), a self-locking plate (224), a self-locking elastic element (225), a self-locking block (226), and an abutment block (227). The single-sided electric gripper (217) and the single-sided electric gripper (221) clamp and abut against each other. The tensile cylinder (222) is fastened to the test chamber (11). The tensile cylinder (222) and the self-locking motor (223) are driven together. The self-locking motor (223) and the self-locking plate (224) are driven together. The single-sided electric gripper (217) and the self-locking electric gripper (221) are driven together. 217) and self-locking plate (224) are fastened together. The self-locking elastic element (225) and the stretching single-sided electric claw (221) are fastened together. The self-locking block (226) and the stretching single-sided electric claw (221) are slidably connected. The self-locking elastic element (225) and the self-locking block (226) are fastened together. The abutting block (227) and the self-locking motor (223) are fastened together. The abutting block (227) and the self-locking block (226) are abutted together and driven. The abutting block (227) is arc-shaped. The abutting block (227) is used to prevent the workpiece from falling off when the stretching single-sided electric claw (221) rotates.

5. The chain corrosion testing device with complex environment simulation function according to claim 4, characterized in that: The testing mechanism (3) includes an industrial camera (31), an electric displacement stage (32), a positioning cylinder (33), and a conductivity probe (34). The industrial camera (31) is fastened to the test chamber (11), the electric displacement stage (32) is fastened to the test chamber (11), the electric displacement stage (32) is driven to the positioning cylinder (33), and the positioning cylinder (33) is driven to the conductivity probe (34).

6. The chain corrosion testing device with complex environment simulation function according to claim 5, characterized in that: The temperature control mechanism (4) includes a heating chamber (41), a cooling chamber (42), a recovery pump (43), a circulation pump (44), and a temperature control tube (45). The cooling chamber (42) and the circulation pump (44) are connected. The circulation pump (44) and the temperature control tube (45) are connected. The temperature control tube (45) is arranged in a serpentine pattern. The temperature control tube (45) and the heating chamber (41) are connected. The recovery pump (43) and the dripping nozzle (121) are connected. The recovery pump (43) and the liquid recovery chamber (1342) are connected. The heating chamber (41), the cooling chamber (42), and the circulation pump (44) are all securely connected to the test chamber (11).

Images